Hi Michael
At the moment, the compression rate is left to the Qt library both for
png and jpeg (-1 is given to QImage::save). I agree it will be usefull
to change from client or from project.
>Why not
>FORMAT=image%2Fjpeg%3B compression%3D90
>I guess it is not standard ?
The problem here is that there has to be a new parameter for each
compression rate. It might be better to have the possibility to
configure the image quality in the project or by giving an optional
parameter for the image quality (0-100 as the Qt parameter). So if the
parameter is not there, the project setting is used. And if the setting
is not set, -1 is used as it is now.
Regards,
Marco
On 23.05.2014 18:44, kimaidou wrote:
Or even better, having it layer per layer. Like we do for png , for
example
FORMAT=image%2Fpng%3B mode%3D8bit -> image 8 bits
Why not
FORMAT=image%2Fjpeg%3B compression%3D90
I guess it is not standard ?
2014-05-23 18:36 GMT+02:00 Paolo Cavallini <[email protected]
<mailto:[email protected]>>:
Or even better, having a config at runtime, project by project.
On 23 maggio 2014 18:33:00 CEST, kimaidou <[email protected]
<mailto:[email protected]>> wrote:
Hi devs, Marco, René-Luc,
I have some people giving feedback about the current JPEG
compression. Many users think the "FORMAT=image/jpeg"
parameters in the GetMap requests produce poor quality images.
I guess the "80%" rate is used. I think it could be enough to
increase it to 90 to produce better looking images (I
personaly create my pyramid with this option with gdal), or
better to leave the choice when installing QGIS Server by
using a config parameter.
Any feedback welcome
Michael
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